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在激光导制武器投放系统中和远距离目标识别应用中,可见光谱电视起着日益重要的作用,由水蒸气、微粒（灰尘和烟）、分子或瑞利（RavIeigh）散射引起的大气散射,使图象对比度随着距离的增加而急剧下降。例如,在薄雾观察条件下,80%对比度的目标,在距离10公里处,可能低到相当于l%的对比度。 硅光导摄象管,由于不易烧毁,而更重要的是由于它的光谱响应宽,量子效率高,所以在军事应用上有许多优点。后两个优点可以滤除较短的波长,使对比度得到改善。然而
Visible spectrum television plays an increasingly important role in laser-guided weapon delivery systems and in long-range target recognition applications, with atmospheric scattering caused by water vapor, particles (dust and smoke), molecules or RavIeigh scattering, So that the image contrast with the increase of the distance dropped sharply. For example, under haze conditions, a target of 80% contrast may be as low as 1% contrast at a distance of 10 km. Silicon photoconductive video tube, because it is not easy to burn, but more importantly because of its wide spectral response, high quantum efficiency, so there are many advantages in military applications. The latter two advantages can filter out shorter wavelengths, resulting in improved contrast. however